Large number of posts does not = large contribution. Believe me, I've been around the BYOAC for a number of years now (under different handles), and this is true more often than it isn't. If you watch closely, you'll see that the people that post infrequently typically give better and more accurate information than the ones with 100, 200, 300 posts behind their name.
Good examples of some people I have learned the most from are Tom61, Oscar, JustMichael, and a few others over the years. And you'll also see that they are not the ones that feel compelled to reply to every post.
Occasionally a newbie comes along and will rack up 100+ posts in a month or two and it kinda upsets the flow of the board, as well as some of it's long time members. This is not unusual, but a few corrective posts like PJ's will sometimes bring the newbie into check and then they will become a more productive member, and sometimes not. It's up to them.
Anyone remember when HowardC first came onboard some time ago? Now Howard is among one of the more respected members of the BYOAC, and I value his opinion on some topics more than anyone else's.
My $.02 on that.